container: hledger-flow: gemini: fix transfer method detection

if no on-chain transfers occurred for the given year.

container/src/hledger-flow/accounts/gemini/gemini-shared.bash

@@ -71,11 +71,11 @@ function parse_transfers()
              next
 
            # NOTE: If info_method isnt ACH/Wire/SEN then it should be GUSD (exception being CreditCard)
-           if ($10 == "ACH" || $10 == "Wire" || $10 == "SEN") {$4="USD"}
+           if ($NF == "ACH" || $NF == "Wire" || $NF == "SEN") {$4="USD"}
            else {gsub(/,USD,/,",GUSD,")}
 
            # Get/set info_method (if available)
-           if ($10 == "ACH" || $10 == "Wire" || $10 == "SEN" || $10 == "CreditCard") {$8=$10}
+           if ($NF == "ACH" || $NF == "Wire" || $NF == "SEN" || $NF == "CreditCard") {$8=$NF}
 
            printf $1 OFS           # UID (info_eid)
            printf date OFS         # Date